I strive for perfection when it comes to posing newborns. My goal is always perfect posing. The difference between a "cute" shot and a "perfect" shot in my eyes is usually the little details. I'm always looking for fingers to be straight, un-bent wrists, wrinkly little squish, smooth forehead wrinkles, no bumps in the blanket, etc.
Just for an example picture - as I was posing Logan, I knew exactly what I was looking for and when I got him somewhat in the position I wanted, I decided to take a "test shot", just so I would have something in case he ended up wiggling out of the pose (they tend to do that sometimes!). The first picture is super cute and I like it - but to me, I see MANY flaws.

It took me about 1.5 seconds to adjust his head and squish him together just a bit more and there - to my eyes, it's much better.

It doesn't take much to get that picture from "cute" to "perfection". :)